Features: Highly power output: The 45M-T A1943/C5200 provides a highly power output of 400W, meeting the needs of user for highly sound effects. Highly voltages capability: Designing to support highly voltages input, suitable for specific scenario that require highly voltages output. Stable and reliable: With a stable circuit structure and quality components, it ensures the stability and clarities of sound output. Strong heat dissipation: Adopting effective heat dissipation design, ensuring the heat dissipation effect during long time highly power operateand extending the service life of the equipment. Multifunctional interface: With multiple input and output interfaces, it is convenient to connect various speaker devices and provide flexible application choice. Specifications: Component: PCB+Metal Size: about 22x14.5x8cm/8.66x5.70x3.14inch Model: 45M-T Operating voltage: Double AC24-45Volt (suggested double AC30V, double AC36V)200-400W toroidal voltages regulator Power amplifier chip: 1494/3858 Channel type: stereoed two-channel, single channel Single channel output: 800W/ 4Ω load (recommend double AC35V 200-350W toroidal voltages regulator) Two-channel output: 400W+400W Impedance: 4ohm / 8ohm Package Includes: 1pc Power Amplifier Board with Cable Set note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.